* incapable of being repudiated or transferred to another; “endowed by their Creator with certain unalienable rights”
* unforfeitable: not subject to forfeiture; “an unforfeitable right”
wordnetweb.princeton.edu/perl/webwn

* Some philosophers and political scientists make a distinction between natural and legal rights.
en.wikipedia.org/wiki/Inalienable

* InAlienable (2008) is a film written and executive produced by Walter Koenig, and directed by Robert Dyke.
en.wikipedia.org/wiki/InAlienable